DIN EN 28675-1992 公制细牙螺纹六角薄螺母.产品等级A和B(ISO8675-88)
时间:2024-05-21 20:05:17 来源: 标准资料网 作者：标准资料网 阅读：9075
【英文标准名称】:Hexagonthinnutswithmetricfinepitchthread;productgradesAandB(ISO8675:1988);germanversionEN28675:1991
【原文标准名称】:公制细牙螺纹六角薄螺母.产品等级A和B(ISO8675-88)
【标准号】:DINEN28675-1992
【标准状态】:作废
【国别】:德国
【发布日期】:1992-02
【实施或试行日期】:
【发布单位】:德国标准化学会(DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:紧固件;交货条件;尺寸;米制的;螺母;螺距;螺纹;ISO微型螺纹;优先尺寸;验收规范;公称尺寸;特性;螺纹形状;公差;米制螺纹;六角头紧固件;名称与符号;对边宽度;六角螺母;紧配合螺纹;浅
【英文主题词】:
【摘要】:
【中国标准分类号】:J13
【国际标准分类号】:21_060_20
【页数】:8P;A4
【正文语种】:德语
【英文标准名称】:StandardTestMethodforVisualEvaluationofGlossDifferencesBetweenSurfacesofSimilarAppearance
【原文标准名称】:类似外表的表面之间不同光泽的目视评定标准试验方法
【标准号】:ASTMD4449-1990(2004)
【标准状态】:现行
【国别】:
【发布日期】:1990
【实施或试行日期】:
【发布单位】:美国材料与试验协会(ASTM)
【起草单位】:E12.11
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:光泽度(表面);外观检查(试验);试验;工艺;涂漆;评定;差别;覆层;表面;涂料
【英文主题词】:distinctnessofimage;gloss;haze;visualgloss
【摘要】:Gloss3isassociatedwiththecapacityofasurfacetoreflectmorelightinsomedirectionsthaninothers.Thedirectionsassociatedwithmirror(orspecular)reflectionnormallyhavethehighestreflectances.Glossisbestseenandanalyzedwhenthesurfacesstudiedareilluminatedbyalightsourcethatprovidesstrongcontrastingpatternsoflightanddark.Suchalightsourceisdescribedinthistestmethod.Thesimplestconceptofglossisthatitcorrespondstothemirror-likereflectancesofsurfaces.However,thedistributionsandintensitiesofthissurface-reflectedlightare(forrealmaterials)highlyvariableandaffectedbyavarietyoffactors:surfacesmoothnessandcontour,refractiveindex,absorptance,angleofincidence,and(toagenerallysmallextent)wavelength.Fromthegreatvarietyofsurface-reflectionpatternsmetinmaterialsofcommerce,ithasbeenpossibletoidentifysevensurface-reflectioncriteriaorx201C;typesofglossx201D;regularlyusedbyskilledtechnologistsforintercomparingandratingtheirproductsforgloss.Sixofthesevencriteria,orx201C;typesofgloss,x201D;areidentifiedinthesectionondefinitions.Theseventh,lusterorcontrastgloss,isseldomofconcerntothecoatingsindustry.1.1Thistestmethodcoversthevisualevaluationofglossdifferencesofcoatingsurfaces,usingspecialtypesoflampsforillumination.Itidentifiessixaspectsortypesofglossthatonemaylookforwhenusingthelamptoassessglossdifferencesbetweensurfaces.Itdescribestheconditionsforusingthelampstobestidentifysmalldifferencesineachofthesixtypesofgloss.Fourlevelsofvisualglossdifferencesaredistinguished.1.2Whilethistechniqueisusefulforbothweatheredandunweatheredspecimens,ithasnotbeenappliedtometallics.1.3ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityofwhoeverusesthisstandardtoconsultandestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:J04
【国际标准分类号】:87_040
【页数】:6P.;A4
【正文语种】:
Product Code:SAE AMS5388
Title:Nickel Alloy, Corrosion and Heat Resistant, Investment Castings 53.3ni 16.5cr 17mo 4.5w 5.8fe 0.40v (Cw-12mw), as Cast
Issuing Committee:Ams F Corrosion Heat Resistant Alloys Committee
Scope:This specification covers a corrosion and heat-resistant nickel alloy in the form of investment castings.